I write a weekly newsletter with Claudia Dawson and Kevin Kelly, called Recomendo. In each issue we briefly recommend 6 things. Here's a great tip in the Jan 26, 2020 issue, which Kevin shared with me a few years back and has proven to be very useful in helping me make decisions about whether or not to accept invitations to events weeks or months away:
One of the most useful bits of advice I ever got, came from the writer Anne Herbert who said that whenever she got an invitation to do something months away or even a week away, she asked herself whether she would accept the gig/meeting/task if it was tomorrow. The answer was often no. I use that immediacy trick all the time, and it has served me very well. — KK
By the way, Claudia, Kevin, and I recently published a book of the best of Recomendo, with 500 brief reviews of cool stuff.